When it is freezing cold, the most interesting question is: What is the warmest to wear? Let us analyze The distinguished officials often wear "fur", that is, leather clothes including fox fur, mink fur, and so on. The poor people only wear "robes", "Yi said no clothes, and the same robes with the son" is what this is about, which is roughly a double-layer jacket filled with messy, animal hair and so on. What is the thermal performance of cotton fiber? Cotton fiber has been used for centuries as the raw material of thermal insulation fiber, and its thermal insulation performance is quite good. At an experimental temperature of 20 ° C plus or minus 2 °; a relative humidity of 65%, 133.2 grams of cotton flakes per square meter, the thermal insulation rate is 66.5; the heat transfer coefficient is 4.5w / m ° C. However, the warmth of cotton fiber has a lot to do with its quality. Cotton fibers are divided into two types: fine-pile cotton and long-pile cotton. The fibers of long-pile cotton are thin and long. The fiber length is generally more than 33mm and the linear density is more than 6,500. At the same time, the maturity, strength, elasticity and other factors of cotton fibers must be considered. Many people now think that cotton coats or quilts are thicker to use, because the moisture absorption of cotton fibers is higher in natural fibers and the elasticity is poor. Down, even in the relatively warm south, has become one of the natural fiber raw materials that the masses of melons love in autumn and winter. From the type there are differences between duck down, goose down and flying silk. what? And velvet? !! The swan is a protection animal, and even the second-generation "fleece" that can be processed and used by artificial breeding is very small, and the opportunities encountered in the market are also zero. Let's avoid talking! From the color is divided into white cashmere, gray cashmere. So what exactly is down? First stated that down does not refer to all feathers of ducks and geese. Down is an animal protein fiber, which specifically refers to the reed flower-like down and feathers that grow on the belly of geese and ducks. Now shake the real thing and talk about how much heat can be kept down. As far as down is concerned, their average thermal insulation rate is above 80%, and their average thermal conductivity is 2.0. Compared with cotton fiber, the thermal insulation rate is about 60%, and the thermal conductivity is above 17 and you can see how strong the thermal insulation of down is. The people who eat melon are wondering again, which one is better for duck down and goose down insulation? In the past few years, the so-called "goose and duck war" happened in the down products industry. In this regard, the Down Apparel and Products Committee of the China Garment Association made it clear that "the goose down and duck down with the same down content have little difference in weight, elasticity and warmth." In addition, the The difference is only the color, as the filler has no effect on the warmth of the textile. note! Here comes the important thing. The important criteria for measuring the quality of a down jacket (quilt) are: content of down, filling and fluff. Fluffyness is an important indicator for measuring the thermal insulation of down products. Simply put, it is the same weight of down, the larger the space occupied, the higher the fluffiness, and the better the thermal insulation. The content of down means the content of "down" in the down of this textile. The fillings of down products are composed of down and feather pieces. Generally, the higher the down content, the more expensive down products are. The easiest way to detect it is to squeeze it back, the faster it will return to its original shape, the higher the amount of lint. The filling amount refers to the weight of the entire down filled in one down product. How much down is put in a textile is the root cause of how much heat it can hold. May wish to quietly tell everyone that the recently popular ultra-light and ultra-thin down jacket is actually an article on the amount of down. Feathers are kept small, naturally light and thin ... Wool is one of the earliest natural fiber raw materials used by humans in textiles. In the textile and clothing industry, wool refers specifically to sheep wool. Wool is a natural animal protein fiber. Under the microscope, wool fibers have natural curls and are covered with scales on the vertical side. The thermal insulation and thermal conductivity of wool are slightly lower than those of down, but higher than cotton fibers. Textile fabrics woven from wool fibers are difficult to compact because of the natural curling of wool, so a static air layer is formed between them, which has excellent thermal insulation properties. At an experimental temperature of 20 ° C plus or minus 2 °; a relative humidity of 65%, 153.9 grams of wool wadding per square meter, the thermal insulation rate is 92.50; the heat transfer coefficient is 0.6w / m ° C. Wool fabrics are divided into two types: worsted and woolen. Nowadays they are mostly used to make coats, sweaters, carpets and other textiles. Note that important things are only said once! There is no such thing as 100% in wool fabrics. The state stipulates that as long as the wool fiber content exceeds 95%, it can be called pure wool fabrics. Cashmere is a layer of fine villi that grows on the outer epidermal layer of goats and has thick roots. The average fineness of cashmere fiber is mostly 14-16um, and the length is generally 35-45mm. According to its color, it is divided into white cashmere, green cashmere and purple cashmere. Now winter cashmere sweaters and cashmere coats are basically standard with one hand. But why would anyone feel that the woolen coat is heavy and overwhelming? To be serious, we are talking about cashmere. A medium-high-quality knee-length cashmere coat will never weigh more than two kilograms. Well, the price is also a bar. Cashmere textiles are expensive, so it's important to distinguish between them. The way people eat melon like to burn it is not scientific, because you will inevitably encounter rabbit hair and wool. What to do? Still, send it to a professional inspection agency for instrument testing! Even the experts in the industry can hardly determine whether a wool textile is indeed a cashmere fiber fabric based on the naked eye and the hand. Attention, whether it is wool or cashmere fiber fabric, non-ball wool fiber fabric, textile scientists are still busy, have not yet invented. When the owner of the clothing store says that he can't afford the ball 100%, you have to watch your pockets. what! silk? The silk weaving silk also came to lively in the warm fiber party? There is nothing wrong, except that silk includes mulberry silk, tussah silk, and so on. Silk is an excellent protein fiber, and it is the only natural filament fiber raw material that is really used. Silk fabrics woven from silk. Of course we use them in summer. However, silk is used as a floc for winter cold protection. Silk quilts are definitely one of the good choices for students who like to sleep in the winter, because they are super lightweight. Just choose a quilt with a heavier weight of silk fiber according to summer standards. However, silk quilts also have defects such as poor air permeability and elasticity. Alpacas are "sacred beast" grass mud horses, native to South America. The color of alpaca fiber is white, brown, yellowish brown or black. The fiber does not contain oil and lanolin, has no peculiar smell, belongs to hollow fiber, has good elasticity, does not stagnate water, and has strong strength and warmth. Alpaca At an experimental temperature of 20 ° C plus or minus 2 °; a relative humidity of 65%, 150.6 grams of camel cashmere flakes per square meter, the thermal insulation rate was 89.20, and the heat transfer coefficient was 0.9w / m ° C. However, the production of alpaca villi is very low, and an adult alpaca can only produce 2-3 kg of alpaca villi fibers per year. Not even catching the hair production of a long-haired rabbit. China has introduced alpaca breeding since 2002, but the overall scale is far from meeting the needs of industrial textiles. Right now, domestic alpaca is still basically in the "selling" stage. Mohair is certainly not the hair of the hippocampus, but the coat of the Angora goat. The word "Mahai" is derived from Arabic, meaning "silk-like goat wool fabric". Although it is very popular in the market, because of its thick fibers and small natural curl, it is not a mohair's fiber strength in terms of thermal insulation performance. Mohair sweater From the laboratory data, among the natural thermal insulation materials, the best thermal insulation is down, followed by silk, and then camel, cashmere, wool and cotton fibers. However, it is not easy to thoroughly understand which fiber textiles are more "insulating" for you. Because it depends on personal preferences. For example, some middle-aged and elderly people like the thickness of the quilted jackets ... It depends on the financial affordability of a person. The silk quilt is at least several thousand yuan ... In summary, the natural fibers used in winter clothing are not obviously superior or inferior. For ordinary people who eat melons, the one that is most suitable for you is the warmest. Seaskin Wetsuits are made from Jako super stretch neoprene foam, and it's limestone neoprene. Women wetsuits have so many scenes to be used, like wetsuits for surfing, wetsuits for scuba diving, Wetsuits For Spearfishing, Wetsuits For Triathlon and so on. You can choose many different styles and pattern colors from our website, also we can do custom wetsuits for you if you have good idea for OEM orders. Wetsuit Top,Girls Surf Suit,Wetsuits For Surfing,Best Wetsuits For Surfing Shenzhen Seaskin Sports Goods Co., Ltd. , https://www.seaskinwetsuit.com